(19)

(11)

EP 0 965 058 A1

(12)

(43) Date of publication: 22.12.1999 Bulletin 1999/51 (21) Application number: 98909712.0 (22) Date of filing: 06.03.1998

(51) International Patent Classification (IPC):  A61B 10/ 02( . ) A61B 5/ 06( . ) A61B 19/ 00( . ) A61M 25/ 08( . ) G01H 5/ 00( . ) G01S 7/ 52( . ) G01S 11/ 14( . ) G01S 15/ 87( . ) G01S 15/ 89( . ) A61B 17/ 34( . ) G01S 7/ 521( . ) G01S 15/ 10( . ) A61B 5/ 042( . ) A61B 8/ 08( . ) A61M 25/ 01( . ) G01H 3/ 00( . ) G01S 5/ 18( . ) G01S 7/ 62( . ) G01S 15/ 66( . ) G01S 15/ 88( . ) A61B 8/ 12( . ) A61B 18/ 14( . ) G01S 15/ 02( . ) (86) International application number: PCT/IB1998/000522 (87) International publication number: WO 1998/039672 (11.09.1998 Gazette 1998/36)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 06.03.1997 US 19970812249 (71) Applicant: Sonometrics Corporation London, Ontario N6C 1A4 (CA)	(72) Inventor: VESELY, Ivan Cleveland Heights, OH 44121 (US) (74) Representative: Haines, Miles John  D. Young & Co. 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)